Digestive System
Circulatory system
Respiratory System
Nervous System
Muscle & Skeleton
100

What is the main function of the digestive system?

What is to break down food into nutrients?

100

What is the main organ of the circulatory system?

What is the heart?

100

What do we breathe in that our body needs?

What is oxygen?

100

What is the control center of the body?

What is the brain?

100

What body system gives the body its shape and support?

What is the skeletal system?

200

What organ does food go to after it leaves the stomach?

What is the small intestine?

200

What do red blood cells carry through the body?

What is oxygen?

200

What is the main organ of the respiratory system?

What are the lungs?

200

What system controls your thoughts, movements, and feelings?

What is the nervous system?

200

What do muscles do when they move bones?

What is contract?

300

What is the name of the acid in your stomach that helps digest food?

What is hydrochloric acid?

300

What are the blood vessels that carry blood away from the heart?

What are arteries?

300

What is the tube called that air travels down to reach your lungs?

What is the trachea?

300

What carries messages between the brain and the rest of the body?

What are nerves?

300

What connects bones to muscles?

What are tendons?

400

What organ produces bile to help digest fats?

What is the liver?

400

What liquid carries nutrients and waste through the body?

What is blood?

400

What muscle helps you breathe in and out by moving up and down?

What is the diaphragm?

400

What is the bundle of nerves that runs down your back?

What is the spinal cord?

400

What protects your brain?

What is your skull

500

What is the long tube that connects the mouth to the stomach?

What is the esophagus?

500

What are the tiny blood vessels where oxygen and nutrients pass to the cells?

What are capillaries?

500

What tiny air sacs in the lungs exchange gases with the blood?

What are alveoli?

500

What part of the brain helps with balance and coordination?

What is the cerebellum?

500

What type of muscle works without you thinking about it, like your heart?

What is involuntary muscle?